Compared nonhandicapped (NH), educationally disadvantaged (ED), and learning disabled (LD) Navajo children on intellectual dimensions measured by the WISC-R. The ED and LD group means were similar on verbal measures, but the LD group scores were lower than ED group scores on performance measures. (Author/RC)

Sex differences in spatial visualization ability accounted for sex differences in mathematical ability for a group of college students. With spatial visualization statistically controlled, no significant sex differences in Quantitative Scholastic Aptitude Test scores were found. Males were more predictable than females due to higher spatial…

A nonverbal paradigm for assessing conservation based on an operant discrimination learning procedure is described. Initial results suggest that young children who could not conserve within the traditional verbal procedure were more likely to demonstrate conservation within the nonverbal paradigm and that traditional Piagetian tasks are verbally…

Language development was studied in 310 pairs of 4-year-old twins. Rotated factor analyses indicated presence of a general language factor (L) and a general nonverbal factor (NV). Moderate genetic influence was found for L and NV abilities. Bivariate genetic analysis estimated a genetic correlation of .63 between L and NV abilities. Results…

Reports the findings of two experiments conducted with South African senior high school students to examine the relationships of metacognitive strategies and nonverbal reasoning ability to test performance in mathematics and English comprehension. Suggests that teaching metacognitive strategies to students who lack such skills may improve their…

Examined neuropsychological functioning of survivors of acute lymphoblastic leukemia who underwent central-nervous-system prophylactic treatment. Findings replicated past research in showing survivors perform poorly on visual-motor integration tasks and develop a Nonverbal Learning Disability. Findings offer recommendations for future research and…

This study investigates the oral language skills of 8-year-old children with impaired reading comprehension. Despite fluent and accurate reading and normal nonverbal ability, these children are poor at understanding what they have read. Tasks tapping 3 domains of oral language, namely phonology, semantics, and morphosyntax, were administered,…

This paper reports a study that followed the development of reading skills in 72 children from the age of 8.5 to 13 years. Each child was administered tests of reading, oral language, phonological skills and nonverbal ability at time 1 and their performance on tests of reading comprehension, word recognition, nonword decoding and exception word…

Correlations and mean score differences between IQs derived from the Universal Nonverbal Intelligence Test (UNIT; Bracken & McCallum, 1998) and the Wechsler Intelligence Scale for Children-Third Edition (WISC-III; Wechsler, 1991) were compared. Participants were Limited English Proficient (LEP) Mexican-American elementary school students, who…

Chinese and Japanese immigrants to the United States and Canada have survived years of discrimination and oppression and today demonstrate academic and professional achievements that are often better than those of whites. However, the Asians continue to obtain higher scores on nonverbal/spatial tests than on verbal tests and tend to be…

The suggestion of an underlying dimension in mental imagery despite low correlations among objective spatial and self report measures was investigated using data from two independent samples of 131 college students. The first study revealed some factorial independence in imagery aptitude, while the second study investigated individual patterns of…

Seventeen preschool children were administered two color-discrimination pretests, verbal and nonverbal. The five children who scored lowest were chosen to recieve the color program. Four scored elow 85 percent on the nonverbal pretest, whereas the other 12 children scored above 85 percent. On the verbal pretest, all five experimental subjects…

This study determined the effectiveness of a group training procedure in improving performance of intellectually average students on the Raven Learning Potential measure, and examined the differential effectiveness of training by race and social class. The sample of 379 second through fifth graders, half of whom were black, were pretested on…

Research on the role of nonverbal communication skills in teacher training is assessed. Nonverbal behaviors communicate teacher expectations and attitudes, regulate classroom interactions, and promote students' understanding of verbal material by structuring or illustrating content. Direct versus indirect teaching, games, and improvisation are…